Adjustable chill mold



'Sept'. l5, 1925.v 1,553,921

M` ANGsT ADJUSTABLE CHILL MOLD Filed Dec. 21, 1923 7 f 'f j/l/ 7 i 4'INVENWR.

,Patented sept. 15, 1925.

- UNITED NSTATT-:s

1,553,92i PATENT ortica.

MAXIMILIAN ANGSI', OF VNETJ'I-IAU'SEN, SWITZERLAND, ASSIGNOR T0ALUMINUM- INDUSTBIE-AKTIEN-GESELLSCHAFT, F NEUHAUSTEN, SIV'ITZEBLAND, A.Sii/'ISS CORPORATION.

ADJUSTABLE CHILL IVIOLD.

Application filed December 21, 1923.

To all whom it may concern:

Be it known that l, MAXIMTLTAN A Nos'r, a citizen of the SwissConfederation, and residing at Neuhausen, Switzerland, have inventedcertain new and useful Improvements in Adjustable Chill Molds, ot whichthe following is a specification.

This invention relates to adjustable moldsl for use in the manufactureof ingots or aluminium and its alloys which can be rolled.

In the gold and silver industry it is known to provide adjustable moldshaving one liked longitudinal wall and a second longitudinal wallmovable along the fixed one. rEhese moldshaverthe defect, however, thatthey enable only ingots of various breadth, and not ingots ot variousthickness to be cast. In addition, these known molds are intended foringots ot only quite small dimensions and are not adapted for use incasting aluminium at the present day as ingots ot lO-lOOO kg. are nowrequired.

Such aluminium ingots weighing up to 100 kg. are usually cast so thatthey stand on edge in the chill molds, so that the socalled pouringpiece is on the smallest Jface of the cast ingot. When perfect ingots ofheavier weight are to be produced they are cast in chill molds that liedown flat and the pouring piece is on one of the larger faces of theingot so that when the ingot is rolled it is situated on the middle ofthe rolled plate or sheet. Asthis is not permissible the pouring piecehas to be removed by milling, turning or planing and a flat faceproduced. In the improved mold according to the present invention themovable longitudinal wall can be shifted horizontally towards and awayfrom the fixed one, and in addition the mold comprises movable endwalls, so that it ena-bles ingots to be cast edgewise-on up to largestsizes and weights required. The movable longitudinal wall preferablyrests with a cranked portion on the bottom of the mold, whereby not onlyis a tight fit and a considerable degree oi' movability ail'orded, butalso suiiicient stability of the movable longitudinal wall in eachposition it may occupy.

The metal is poured along a narrow side into the chillmold and thepouring piece is formed on a narrow side of each ingot, one orl morepouring pieces being produced according to the length of an ingot. The

Serial No. 682,129.

pouring pieces on the narrowrside have the great advantage that theyV donot need to be removed 'before the rolling operation,A be" cause theypass into the edges which are removed in any case when cutting theplates or sheets. Considerablev loss ot material is saved and extra workis avoided, and the production cost o' the ingots or billets ready forrolling is diminished. Owing to dispensing with the pouring-in funnelmaterial is also saved. rlests have shown that an important advantage ofthe improved castiron mold is that the ingot poured broadside-on can bemade much denser and co1npletely free from pores, so that it ispreferred for the manufacture of plates or sheets iree from blisters.

Further, the adjustability of the walls of the mold has the greateconomic advantage that a smaller number of molds vsuflices to meet thevery various demands oi the rolling mill, whereas heretofore for eachshape or size of ingot a mold had to be made especially for it.

@ne form of improved chill Vmold according to the invention isillustrated by way ot example in the accompanying drawing, whereinFigure l is a top plan view,

Figure 2 is a vertical longitudinal section, and

Figure?) is a transverse section.

Like reference numerals designate like parts throughout the severalviews.

The mold comprises a liked longitudinal wall 2 integral with the bottom0, and a movable longitudinal wall l movable towards and away Jfrom thewall 2. This wall 1 has a cranked portion with which it rests on the topof the bottom 0` of the mold, and the whole mold is mounted in a pouring`frame which is not illustrated.

The two end walls 3 and 4 are movable in the longitudinal direction oftheA mold. The two longitudinal walls l and 2 can be drawn together bybolts 5 which are pivoted to the wall 2 and extend through slots in thewall l to the outside of the latter where they carry nuts. Further, thewall l can be shifted by screw bolts 6 towards and away from the bottom,packing of various thickness according to the desired thickness of ingotbeing employed between the otlsetlimb of the wall l and the opposedvertical face of the bottom of the mold. The end walls 3 and 4 can begiven the desired width corresponding to the required thickness of ingotby means of packing pieces, or alternatively each end wall may beexchanged for an-` other one ofl the desired size.

In order to prevent the upper parts of the longitudinal walls l, Q; frombulging outwards during the pouring of the metal they may be heldtogether, by one or more l!- shaped members, the number vemployeddepending on the length, of the mold.

Bolts 7 extending through the Offset linib of the wall l and abuttingagainst the op posed vertical face of the bottom O of the moldy servefor forcing the wall 1 away from the ingot so that the vlatter may beremoved from the mold. It has been found in practice that it suffices toshift the wall l about l-Q, nim. in order to enable the ingot to beconveniently drawn out of the mold .after removal o-f the end wall l andtilting the mold.

The construction of the described chill Inoid is such that the ingot canbey taken out in the shortest time possible and that the mold can beprepared exceedingly rapidly for a new pour.

I Claim 1f 1. An adjustable non for. casting mais of aluminium and itsalloys, comprising inA combination a bottom, a longitudinal wall fixedthereon, an adjustably movable longitudinal wall making joint with thebottom and movable towards and away from the 85 fixed wall, and two endwalls making joint each with the bottom and with the longitudinal wallsone of whichl end walls is movable towards and away from the other,substantially as described.

a A11 adjustable chill mold tali @estime ngots of aluminium and,V itsallow, QO'IH prising in combination a bottom, a, iongi tudinal walllixedly mounted thereon, a movable longitudinal wall having an offsetlower portion seated on the bottom, and movable towards and away fromthe fixed wall., tvo @mi valles making ioint each with the bottom andwith the 'two longitudinal walls and slidable each towardsv and awayfrom the otlier'along the bottom, means for shifting'the movableIlongitudinal wall towards the fixed longitudinal wall, and means forshifting the movable longitudinal wall away from the fixed longitudinalrwall, substantially'as described.

3. An adjustable'mold for casting ingots of aluminium and its alloys,comprising in combination abo'ttom and a fixedlongitudinal kwallintegral therewith, a movable longitudinal wall having an oifset lowerportion seated on the bott-om and movable thereon towards and away fromthe said fixed wall, and two end walls making joint each with thedbottomand with said longitudinal walls,

one of which end walls is movable on the T bottom towards and Yaway fromthe other end wall substantially as described.

`In testimony whereof, I affix my signa- MAXIMILIAN ANGrST,

